Vehicle battery case

A vehicle battery case comprising:

• a lower panel disposed at a bottom of a vehicle and configured to support a battery from below;
• a battery cross member disposed on the lower panel and extending in a width direction of the vehicle;
• and
• battery side members disposed on sides of the lower panel in a longitudinal direction of the vehicle such that the battery side members are in contact with both ends of the battery cross member via inner surfaces of the battery side members,
• wherein each of the battery side members includes a flange part which extends from a lower end thereof to an outside of the vehicle and is connected to a side sill,
• wherein a load applied to the side sill of the vehicle during a vehicle side collision is sequentially transferred from the battery side member to the battery cross member, and
• wherein the battery side member includes a partition wall part including the inner surface in contact with one of the ends of the battery cross member, and a connection part connecting the flange part and the partition wall part to each other in a diagonal direction.